I promoted a tweet just for curiosity and a significant portion of the engagement was spammy.
A lot of likes from accounts selling some kind of sex work, some really blatant spam, a lot of small time self promotion from wannabe influencers. Much of this was probably “real people” but also “spam”. There is a spectrum of what is and is not “real” usage vs spam, but if I were advertising for real, I wouldn’t want to target the Twitter account representing a furry onlyfans creator. Of those there were several in the few hours and ~$100 I left the tweet up.
In other words a significant part of the engagement in my promoted tweet was low quality Twitter accounts engaging with my tweet in order to get more attention for themselves.
I’m not so sure there can be exact metrics, when exactly an account is and is not spam is probably impossible to determine, there is a lot of grey area.
Twitter's ads are extremely strange and inaccurate and it doesn't seem to matter to anyone. Recently I only get ads for strange pharmaceuticals, mostly mABs for cancer patients.
Also, they're different on different clients even if I'm signed into my account on all of them. So I'm not sure what the signals it uses are.
A lot of likes from accounts selling some kind of sex work, some really blatant spam, a lot of small time self promotion from wannabe influencers. Much of this was probably “real people” but also “spam”. There is a spectrum of what is and is not “real” usage vs spam, but if I were advertising for real, I wouldn’t want to target the Twitter account representing a furry onlyfans creator. Of those there were several in the few hours and ~$100 I left the tweet up.
In other words a significant part of the engagement in my promoted tweet was low quality Twitter accounts engaging with my tweet in order to get more attention for themselves.